1. Physics 8.2A Sample problems

2. Sample problem #1: A bolt must be tightened with torque of 35 N•m
Sample problem #1: A bolt must be tightened with torque of 35 N•m. You use a wrench that is 25 cm long and pull at an angle of 60˚. How long is the lever arm and what force do you exert?

3. Sample problem #2: You have a wrench that is 0. 475m long
Sample problem #2: You have a wrench that is 0.475m long. A job requires 50.0 N•m of torque. If you can exert 432 N of force, what angle is required to complete the job?

4. Sample problem #3: Kari (56 kg) and Ann (43 kg) want to make a see-saw with a 1.75m piece of wood. Where should they place the pivot to balance?